Participants

Show your colleagues and clients that you participate in the EQAT proficiency test phytoplankton! We guarantee total confidentiality of your data at all times.

If you agreed to the publication of your participation in the EQAT scheme when registering, you are included in the list below. Your results will not be shown here and will remain anonymous.



2025 / 2026
Proficiency test phytoplankton 2025 / 2026
AECOM Spain DCS, S.L.
Barcelona
Spain
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Agentur für Umwelt und Klimaschutz Bozen
Leifers
Italy
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Agenzia Provinciale Protezione Ambiente
Trento
Italy
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Analytisches Labor der SGL
Lübbenau OT Kittlitz
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
AQUABIO
La Mézière
France
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
ARPAV
Verona
Italy
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Bergische Wasser- und Umweltlabor GmbH
Wermelskirchen
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
BIOSKOP
Halberstadt
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
GWAmbH, NL IWU Luisenthal
Tambach-Dietharz
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
IDUS Biologisch Analytisches Umweltlabor GmbH
Ottendorf-Okrilla
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Institut Dr. Nowak GmbH & Co. KG
Ottersberg
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Institut für Seenforschung (LUBW)
Langenargen
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
KLS Gewässerschutz
Hamburg
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
KOWUG Kommunale Wasser- und Umweltanalytik GmbH
Bad Blankenburg
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Landesamt für Natur, Umwelt und Klima NRW
Bonn
Germany
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Syndicat des eaux du barrage d’Esch-sur-Sûre
Eschdorf
Luxembourg
2025 / 2026
Proficiency test phytoplankton 2025 / 2026
Wasserverband Siegen-Wittgenstein
Netphen
Germany
2023
Proficiency test phytoplankton 2023
A.N.A.R., A.B.A. Buzau-Ialomita/Sistemul de Gospodarire a Apelor Ialomita
Slobozia, Jud. Ialomita
2023
Proficiency test phytoplankton 2023
Agenzia provinciale protezione ambiente TN (APPA TN)
Trento
2023
Proficiency test phytoplankton 2023
Agenzia tutela della salute della Brianza
oggiono



Proficiency test

Since 2002, the proficiency test phytoplankton has been carried out on an international level by the LTV.

From 1.1.2025, we will no longer be able to offer ring tests to participants from countries outside the EU. We regret this decision and apologise for the inconvenience

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Design of our EQAT scheme

The EQAT design is focused on the application of the Utermöhl method using the inverted microscope and consists of three components. Components 1 and 2 are methodological, focussing on the enumeration and biovolume calculation and component 3 is taxonomic in nature.

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Procedure of our EQAT scheme

The EQAT scheme is divided into 9 phases, the status of which can be viewed on-line on our website. With the announcement of the EQAT scheme, the planned time schedule is communicated to the participants.

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Requirements for participation, costs and evaluation

Only laboratories that have the personnel and equipment required for the EQAT proficiency test phytoplankton can participate in our scheme. Each participant in the EQAT scheme requires an individual registration.

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About the organiser

The EQAT phytoplankton proficiency tests are an activity of the Landestalsperrenverwaltung des Freistaates Sachsen (LTV). 

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Reports

Since 2005, the evaluation of the results has been carried out in accordance with DIN 38402 – 45: 2014 using robust statistical methods.

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